Simulation study on acoustic streaming and convective cooling in blood vessels during a high-intensity focused ultrasound thermal ablation

Abstract : This study investigates the influence of blood vessels on temperature distribution during high-intensity focused ultrasound (HIFU) ablation of liver tumors. A three-dimensional acoustics-thermal-fluid coupling model is simulated to compute the temperature field in the hepatic cancerous region. The model is based on the linear Westervelt and bioheat equations as well as the non-linear Navier-Stokes equations for the liver parenchyma and blood vessels. The effect of acoustic streaming is also taken into account in the present HIFU simulation study. We found from this three-dimensional coupling study that in large blood vessel both the convective cooling and acoustic streaming can significantly change the temperature field and thermal lesion near blood vessels.
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International Journal of Heat and Mass Transfer, Elsevier, 2012, 55 (4), pp.1261 - 1270. 〈10.1016/j.ijheatmasstransfer.2011.09.023〉
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https://hal.inria.fr/hal-00715205
Contributeur : Marc Thiriet <>
Soumis le : vendredi 6 juillet 2012 - 14:47:12
Dernière modification le : vendredi 25 mai 2018 - 12:02:04

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Maxim A. Solovchuk, Tony W.H. Sheu, Win-Li Lin, Ihyuan Kuo, Marc Thiriet. Simulation study on acoustic streaming and convective cooling in blood vessels during a high-intensity focused ultrasound thermal ablation. International Journal of Heat and Mass Transfer, Elsevier, 2012, 55 (4), pp.1261 - 1270. 〈10.1016/j.ijheatmasstransfer.2011.09.023〉. 〈hal-00715205〉

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